Acetylene-lamp



M. STEIN.

ACETYLENE LAMP. APPLICATION FILED OCT- !4; l9l9.

1,376,654. Patented y 3; 1921.

MEYf/ P S Tf/M UNITED STATES PATENT OFFICE,

MEYER STEIN, or SPRINGFIELD, ILLINOIS, ASSIGNOR, 0F ONE-HALF To PHILIPSTEIN, 0E SPRINGFIELD, ILLINOIS.

ACETYLENE-LAMP.

T 0 all w ham it may concern:

Be it known that I, MEYER STEIN, a citizen of the United States ofAmerica, residing at Springfield, in the county of Sangamon and State ofIllinois, have invented certain new and useful Improvements inAcetylene-Lamps, of which the following is a specification, referencebeing had therein to the accompanying drawing.

My invention relates to improvements in acetylene lamps and moreparticularly to the dropper, or valve controlled communication, betweenthe water and carbid containers.

My object is to provide a dropper, of simple construction, in which thevalve may, with facility, be removed for purposes of cleaning nd repair.

My improvements consist in the novel construction, arrangement andcombination of parts, as will hereinafter be fully, clearly andconcisely set forth, definitely pointed out in my claim and illustratedby the accompanying drawing, in which- Figure 1 is a vertical sectionalelevation of an acetylene lamp constructed in accordance with myinvention.

Fig. 2 is a perspective view of my improved, removable and replaceablevalvestem, and

Fig. 3 is a perspective view of the manipulative element of the dropper.

Referring to the drawings. by numerals, 1 designates the water containerand 5 the carbid container, located beneath the water container 4 anddetachably secured thereto, as by threads 6.

In the septum 7 dividing the containers 4 and 5 there is a port 8, overwhich there is a water tight hood 9 which port and hood form a gascommunication, through the water container, between the carbid containerand the jet 10.

Through the top of the water container there is a filling opening 11,having a cover 12.

Extended through the top of the water container and through the septum 7there is the dropper, which comprises an open ended tube 13 having ahole 14: communicating with the water container and which isSpecification of Letters Patent.

Patented May 3, 1921.

Serial No. 330,549.

internally threaded, as at 15, at its upper end, and which is preferablysecured in place, against removal, as by solder, or the like, at the topof the water container and at the septum.

Extended through the tube 13 and projecting at both ends therefrom is astem 16, which is threaded at both its ends and provided adjacent itsupper end with a pair of swaged wings 17, which serve as keys to preventrelative rotational movements between the stem and its raising andlowering means, namely the externally threaded sleeve 18 having theslots 19 for fitment over the wings 17 of the stem, and which isthreaded to the threads 15 of the tube 13. The stem 16 is of the formillustrated in Fig. 2, having both its upper and lower terminalsthreaded, and having its body flattened to form the wings 1717.

For holding the stem 16 and tube against relative longitudinal orvertical movement I provide a nut 20 threaded upon the stem forengagement with the sleeve to hold their keying devices, the wings 17and slots 19 in locked relationship.

For convenience in rotating the sleeve to raise and lower the stem Iprovide a handle 21, which by preference is permanently secured to thesleeve and which handle, by further preference, is constructed of anelastic metal, such as sheet brass, whereby to operate as a tensiondevice, to hold the sleeve against ready rotation, as required tomaintain an established water flow.

To the lower threaded end of the stem there is secured a valve 22,provided with a flange 23, and with a cone 24, which operates with thelower end of the dropper tube to control the flow or dropping from thewater container to the carbid container.

It will be obvious that upon a release of the nut 20, from the stem 16that the stem, with its valve 22, may be bodily removed from the tube13, by a simple withdrawal of the wings 17 from the slots 19 of thesleeve, and that with the stem and valve removed the tube, open at bothends may be readily cleaned, or freed from matter tending to preventproper operation of the valve.

I claim:

A dropper for acetylene lamps, comprising a tube, open at both ends, asleeve havingv a threaded connection with the tube, a

5 stem extended through the tube and sleeve, a valve carried by thestem, means for key-- ing the stem to the sleeve, a handle for r0-tating the sleeve and a nut for holding the sleeve and stem with theirkeying means relatively engaged. V V V 10 In testimony whereof Ihereunto affix my signature.

MEYER "STEIN.

